Here is a nice lens to use if you take your own landscaping shots. A fisheye will allow everything to be in the frame it just might give a slightly distorted look.

You gotta back off on the fisheye a little. The guy that takes my lawn pics also uses a fisheye lens but it's not quite that aggressive. It's fisheye but it's real subtle. Here's an example. You can see it if you look at the picnic table. I don't want to put my pic in your thread so here's a link.